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Dexter Sneak Peek: "First Blood"

As evidenced by this week's episode of Dexter, our favorite serial killer has a major problem Lumen.

Julia Stiles made her speaking debut on the Showtime hit last night, eventually giving Dexter her trust, but also giving him a problem no one saw coming: many more Boyd Fowler-like targets, as Dexter was hoping to save an innocent life, not sign on to team up with a stranger and end a few guilty ones.

It will be interesting to see where this partnership goes. For now, fans can get an early look at Lumen trying to convince Dexter of what needs to happen in the following clip, courtesy of Sunday's "First Blood."